<template>
  <div class="wrapper">

    <!-- header -->
    <header>
      <i class="fa fa-angle-left" @click="goback"></i>
      <p>商家列表</p>
    </header>

    <!-- 商家列表 -->
    <ul class="business">
      <li v-for="item in businessArr" @click="toBusinessInfo(item.businessId)">
        <div class="business-img">
          <img :src="item.businessImg">
          <div class="business-img-quantity" v-show="item.quantity>0">{{item.quantity}}</div>
        </div>
        <div class="business-info">
          <h3>{{item.businessName}}</h3>
          <p>&#165;{{item.starPrice}}起送 | &#165;{{item.deliveryPrice}}配送</p>
          <p>{{item.businessExplain}}</p>
        </div>
      </li>
    </ul>
    <!-- 底部菜单 -->
    <Footer></Footer>

  </div>
</template>



<script>
import Footer from '../components/Footer.vue';

export default {
  name: 'BusinessList',
  data() {
    return {
      orderTypeId: this.$route.query.orderTypeId,
      businessArr: [],
      user:{}
    }
  },
  created() {
    this.user = this.$getSessionStorage('user');

    //根据orderTypeId查询商家信息
    this.$axios.post('BusinessController/listBusinessByOrderTypeId', this.$qs.stringify({
      orderTypeId: this.orderTypeId
    })).then(response => {
      this.businessArr = response.data;
      //判断是否登录
      if(this.user!=null){
        this.listCart();
      }
    }).catch(error => {
      console.error(error);
    });
  },
  components: {
    Footer
  },

  methods:{
    goback() {
      this.$router.go(-1);
    },
    listCart(){
      this.$axios.post('CartController/listCart', this.$qs.stringify({
        userId: this.user.userId
      })).then(response => {
        let cartArr = response.data;
        //遍历所有商家列表
        for(let businessItem of this.businessArr){
          businessItem.quantity = 0;
          for(let cartItem of cartArr){
            if(cartItem.businessId == businessItem.businessId){
              businessItem.quantity += cartItem.quantity;
            }
          }
        }
        this.businessArr.sort();
      }).catch(error => {
        console.error(error);
      });
    },


    toBusinessInfo(businessId){
      this.$router.push({path:'/businessInfo',query:{businessId:businessId}});
    }
  }
}
</script>



<style scoped>
/********** 总容器 **********/
.wrapper{
  width: 100%;
  height: 100%;
}
/********** header部分 **********/
.wrapper header {
  width: 100%;
  height: 12vw;
  background: linear-gradient(#F37373, #F08080, #EF9292);
  color: #fff;
  font-size: 4.8vw;
  position: fixed;
  left: 0;
  top: 0;
  z-index: 1000;
  display: flex;
  align-items: center;

}

.wrapper header i {
  margin-left: 6vw;
}

.wrapper header p {
  margin-left: 33vw;
}


/**********商家列表***********/
.wrapper .business{
  width: 100%;
  margin-top: 12vw;
  padding-bottom: 14vw;
}


.wrapper .business li{
  width: 100%;
  box-sizing: border-box;
  padding: 2.5vw;
  border-bottom: solid 1px #DDD;
  user-select: none;
  cursor: pointer;
  display: flex;
  align-items: center;
}

.wrapper .business li .business-img{
  position: relative;
}
.wrapper .business li .business-img img{
  width: 20vw;
  height: 20vw;
}
.wrapper .business li .business-img .business-img-quantity{
  width: 5vw;
  height: 5vw;
  background-color: red;
  color: #fff;
  font-size: 3.6vw;
  border-radius: 2.5vw;
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;
  right: -1.5vw;
  top: -1.5vw;
}

.wrapper .business li .business-info{
  margin-left: 3vw;
}
.wrapper .business li .business-info h3{
  font-size: 3.8vw;
  color: #555;
}
.wrapper .business li .business-info p{
  font-size: 3vw;
  color: #888;
  margin-top: 2vw;
}



</style>